To improve a follow-up relating to the ground displacement or the like and prevent generation of separation in a joint part and connect a plurality of underground buried pipes at a time.
In a joint, a plurality of underground buried pipes P and connection pipes P' movably held in a vertical direction are connected while impeding moving in a horizontal direction by respectively paired pipe pillows 11a. The joint is formed by a resin pipe 12 covering a connection part between the underground buried pipe P and the connection pipe P' in a holding condition and a sleeve pipe 15 externally fitting by the resin pipe 12 in order to hold a condition covering the connection part between the underground buried pipe P and the connection pipe P' in a holding condition. The resin pipe 12 is divided into two parts in a half split shape, its internal peripheral part is provided with a groove 12a storing a protrusion 13 protrusively provided in a pipe end part peripheral surface of the underground buried pipe P, groove 12b making the connection pipe P' slidable by a prescribed amount/while storing the protrusion 13 protrusively provided in a pipe end part peripheral surface of the connection pipe P', and storage grooves 12c, 12d of a rubber ring 14 for ensuring air-tightness and water stopping between the underground buried pipe P, connection pipe P' and the resin pipe 12.
HORIIKE KIYOSHI
SUZUKI SHINICHI
NAKAGAWA MASAO
NAKAGAWA SHIGERU
ISHIZAWA TAKESHI
NIPPON STEEL CORP
NIPPON KOKAN KK
KAWASAKI STEEL CO